UDDA is a free-to-play sportsbook and gaming app developed by Flowz for Android users. It is a lifestyle app that falls under the sports subcategory. UDDA allows users to participate in games and contests without any cash value. The app presents users with real-time odds on all major professional and college sports, including NFL, NBA, MLB, NHL, College Football, NCAA Men's Basketball, Professional Soccer, MMA, UFC, Golf, Tennis, and more.

The app is social, sports-oriented, and gaming-focused. Users can play against the sportsbook, challenge their friends, or join public contests. UDDA bucks are awarded to users who register with their phone number or social media account, and they can earn more by referring friends. No credit card is required to register.